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› Freya X-spec eletric conversion - wich Scorpion motor and gear/pinion setup?
09-04-2009 11:00 AM  8 years agoPost 1
Prince Caramba

rrNovice

Luxembourg

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Hello conversion guru's!
I'd like to change my Xspec into an electric bird. I am thinking to run it on 12s/5000mah pack. I've got TURNIGY Sentilon100A HV 5-12S BESC (Ver4) for it and now I'd like to choose a Scorpion motor from HK 4035 series. The range today is 4035-500 to 4035-800. It will be running in the Staysee fuselage. So what setup to choose, gear/pinion -honestly I have no freaking idea!

I love the smell of helipad in the morning...

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09-04-2009 11:33 AM  8 years agoPost 2
bexander

rrNovice

Gothenburg, Sweden

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There also is a 4035-400 which I am using i my electric Freya.
I am planing on running it with stock gearing, 12T pinion and 95T main gear, for 12S battery. If you do not need headspeed over 2000rpm should be able to go with 11T pinion and maybe also 93T or 91T main gear.

You can use MrMel's heedspeed calculator:
http://heli.dacsa.net/calculatorv2/...x?slimline=true

My 400kv motor has according to tachometer measurements kv of 423. At least on 10S. I have used a 10S setup for this seson but I will use 12S setup from now on.

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